I've been intrigued with the prospect of anonymous coins so I decided to make this list of all known anononymous coins and their anonymity systems compared to one another.
God/Emperor Tier(Most anonymous coin):
Monero - This coin uses something called Cryptonote, which is at it stands, the most anonymous system available. Cryptonote is unrivaled in terms of fungibility ability and secure anonymity while also having completely different code than Bitcoin, so it's not a bitcoin clone as almost all other coins are. Monero has no premine or instamine, has a very large, active community, and a large dedicated dev team of 7(lucky #).
Prince Tier
Shadowcash - This coin uses the Ring Signatures supplied in Monero/Cryptonote, it also uses Shadow Tokens to help with anonymity as well, and it's all done on the Bitcoin codebase, it is an initial fork of Bitcoin. However this coin had just 14 days available for mining, so it has what's called a fastmine.
Court Official Tier
Darknote - This coin uses the same Cryptonote system Monero has, which means it's anonymity system already surpasses many other coin's who uses mixers, tumbler, and etc. It has a small community and dev team. This coin was originally called Ducknote before the name change.
Clown/Jester Tier
Dash - This coin uses masternodes to deliver anonymity. However, there are a few huge issues with this coin, it has had an enormous instamine where 2million+ coins were emitted in 2 days to a few miners at it's release, and then have the large coin ouput reduced by more than 300% by it's developers. This means that the extremely early miners who mined on the first 2 days recieved 10% of the entire coin supply all to themselves. Dash was originally named Darkcoin, then renamed to Dash, in what's most likely an attempt to try and shake off the initial scam it had by it's developers(It failed).
Navajocoin- This coin uses centralized mixers to mix users coins, which destroys the entire point of being decentralized.
and more to come.
Feel free to post about the various, almost endless anonymous coins available.
Boxmining has a great short intro to privacy coins ... check it out:
https://www.youtube.com/watch?v=xT6uuc-MoA4